/Engine/Source/Runtime/GeometryCore/Public/Selections/MeshFaceSelection.h
Convert vertex selection to face selection. Require at least minCount verts of tri to be selected (valid values are 1,2,3)
FMeshFaceSelection ( const [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) * mesh, const [FMeshVertexSelection](API\Runtime\GeometryCore\Selections\FMeshVertexSelection) & convertV, int minCount )